Complete the following text with suitable verbs in the box with their right forms. $\begin{array}{|l|l|l|l|l|} \hline \textbf{see} & \textbf{destroy} & \textbf{lose} & \textbf{cause} & \textbf{increase} \\ \hline \end{array}$ Global warming is (a) — day by day. It is mainly (b) — by the destruction of forests. Every day we are cutting down trees recklessly, but not planting a single one. As a result, wild animals are (c) — their living places. Many birds and animals are (d) — no home. That loss is posing a threat to the environment by (e) — the ecological balance.